4245531977 has 2 divisors, whose sum is σ = 4245531978. Its totient is φ = 4245531976.

The previous prime is 4245531973. The next prime is 4245532013. The reversal of 4245531977 is 7791355424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4222530361 + 23001616 = 64981^2 + 4796^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245531977 - 2² = 4245531973 is a prime.

It is not a weakly prime, because it can be changed into another prime (4245531973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122765988 + 2122765989.

It is an arithmetic number, because the mean of its divisors is an integer number (2122765989).

Almost surely, 2^4245531977 is an apocalyptic number.

It is an amenable number.

4245531977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245531977 is an equidigital number, since it uses as much as digits as its factorization.

4245531977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 47.

The square root of 4245531977 is about 65157.7468686571. The cubic root of 4245531977 is about 1619.2380678778.

The spelling of 4245531977 in words is "four billion, two hundred forty-five million, five hundred thirty-one thousand, nine hundred seventy-seven".